There are three SIM card sizes

  • Standard
  • Micro
  • Nano
SIM Type Alternative Name Length (mm) Width (mm) Height (mm)
Standard SIM 2FF or “Mini SIM” 25.00 15.00 0.76
Micro SIM 3FF 15.00 12.00 0.76
Nano SIM 4FF 12.30 8.80 0.67

Most phones sold in the last few years use micro or nano. Standard SIM are pretty obsolete these days, more than likely you will not use it.

Here is a graphic, if it looks like the below, you can match up the size.


You can always cut a larger sim card to a smaller size. Or you can insert a smaller sim card into a larger compartment, use tape or another adhesive to make sure the metal is in contact.